DOC'S DIESEL FUEL FILTERS - Doc's Fuel Filters remove contaminants like separate water from dirt, rust, and debris, protecting fuel system components and ensuring peak engine performance. They optimize fuel flow and pressure, enhancing acceleration, fuel economy, and vehicle performance. With a focus on maximizing filtration media surface area, our high-quality filters come complete with o-rings as needed. INTERCHANGE - Replaces Fleetguard FS19598, Replaces Wix 33349, Replaces Baldwin PF7751, Replaces Premium Guard DF8323, Replaces Purolator FS9201 FITMENT - Compatible with 1997-1999 Dodge Ram 2500, 3500 5.9L Cummins THIRD PARTY TESTED - 3 Micron @ 96.92% Efficiency Rating REPLACEMENT GUIDELINES - Above all recommendations, change according to your vehicle’s manufacturer warranty. Fuel Filters should be changed every 5,000 to 10,000 miles, or 15,000 maximum. Doc's Fuel Filters remove contaminants like separate water from dirt, rust, and debris, protecting fuel system components and ensuring peak engine performance. They optimize fuel flow and pressure, enhancing acceleration, fuel economy, and vehicle performance. With a focus on maximizing filtration media surface area, our high-quality filters come complete with o-rings as needed. INTERCHANGE: Replaces Fleetguard FS19598, Replaces Wix 33349, Replaces Baldwin PF7751, Replaces Premium Guard DF8323, Replaces Purolator FS9201. FITMENT: Compatible with 1997-1999 Dodge Ram 2500, 3500 5.9L Cummins